Window construction



March 4, 1941. J. scHUNK WINDOW CONSTRUCTION Filed Nov. 4, 1939 ATTORNEYPatented Mar. 4, 1941 WINDOW CONSTRUCTION Joseph Schunk, Newark, N. J.,assignor to The National Lock Washer Company,

Newark,

Application November 4, 1939, Serial No. 302,811

2 Claims.

This invention relates to improvements in window construction.especially adapted for use on cars and buses.

In cars and buses the windows are usually constructed so that they'canbe raised and lowered and held to one or more heights above thewindowsill; With such a construction, it is the practice to have aspring maintain engagement between the lock rack and the sash lock bolt,the arrangement being such that the sash may be raised without operatingthe sash lock lever. This is in order that the window may be raised andthe sash lock will automatically engage with notches in the window guiderack. In. such a construction, the end of the lock bolt drags along onthe face of the rack, with the result that the rack face engaged by theend of thebolt becomes worn and roughened, which worn and roughenedsurface will catch into the Weather strip usually used on the edge ofthe window sash, thereby making it difiicult to operate the window. Inmy Patent 2,177,463,issued October 24, 1939, I have shown and describeda construction which obviates to a great extent the dimcultiesmentioned.

It is an object of my present invention, however, to provide a moresimplified and cheaper arrangement, and my improved form of constructionis shown in'the annexed drawing, wherein:

Figure 1 is a partial cross-sectional view through a part of the windowwhere the window sash engages a side member of the window frame.

Figure 2 is a partial front elevational view of Figure 1.

Figure 3 is a View on the line 33 of Figure 2. I

Figure 4 is a view on the line 44 of Figure 3.

Figure 5 is a fragmentary perspective view of an end or section throughthe sash guide member.

Figure 6 is a perspective view of a portion of. the lock bolt rackshowing one of the notches with the lock bolt shown in dotted position.

Figure 7 isa perspective view of one of the removable sides of the guidemember shown in Figure 5.

Figure 8 is a modified form of construction of the upper portion of theconstruction shown in Figure 4.

Figure 9 is a sectional view through the sash guide member, the lock barbeing shown in dotted position.

Figure 10 is a view similar to Figure 9, but a modified form ofconstruction.

In the different views wherein like numbers refer to correspondingparts, I is a fragmentary portion of the vertical post of a window frameto which is fastened, as by screws 3 and 4- (see Figure 4) a guidemember 2. The guide member 2 has grooves 5, and 6 therein to reduce theweight and cost of the strip. The guide member 2 has a seat'portion orsurface 1, from the opposite sides of which extend sides 8 and 9, one ofwhich, for examplethe side 9, is removably carried by the guide member 2for the purpose of assembling the window sash into the guide member. Theside member 9 is held in place by any satisfactory means such as one ormore screws l0.

Between the side members 8 and 9, is positioned a U-shaped sash member Hwhich is adapted to receive a glass pane 12, the same being held in thesash member II by a suitable sizing strip l3. Also fastened to the sashmember H in any satisfactory manner as by a suitable cement, is aweather strip It made of felt or other suitable material, which willslide between the sides 8 and 9 of the guide member 2. The guide member2 is provided with a channel l5 which intercepts the surface or seat I.Positioned within the channel 15 is a rack I6 having a plurality ofnotches ll to receive the end l8 of a lock bolt [9. The lock bolt I9 isadapted to be operated by a lever 20 pivotally mounted through a member2| on a window sash member 22. Since the lock bolt per se forms no partof my present invention, no further description appears to be necessary.

The rack l6 as shown in Figure 4:.iS held from moving longitudinally ofits length by the screw 3 and terminates at a point adjacent the screw4. However, as shown in Figure 8, the .rack 16 may'extend so as to beengaged by the screw 4.

As shown in Figure 9, the rack I 6 is dove-tailed in cross-section andfits a corresponding formation in the guide member 2 so that all lateraldisplacement is prevented. However, the formation may be rectangular inshape as shown in Figure 10. In either construction, the guide member 2is made of extruded material, preferably aluminum or aluminum alloy, andthe rack may also be of extruded material or rolled material, but of aharder consistency than that of the guide member 2; for example, it maybe of steel or hard rolled brass or bronze, or an alloy of steel. 4

As shown particularly in Figures 9 and 10, the rack I6 is positionedbelow the surface or seat 1, and the end l8 of the lock bolt fits withinthe channel and engages the rack IS without coming in contact with theseat 1 which is engaged by the weather strip l4.

While I have utilized, as indicated in Figure 4:, the screw 3 whichholds the guide member 2 of the window frame member I, to hold the rackIS in position Within the channel of the guidememher, this is notnecessary as the guide member in both forms shown in Figures 9 and 10may be easily and quickly staked into position so that no screws,rivetsior welding, such as utilized in my patent previously referred to,is required. This construction, as heretofore pointed out, materiallyreduces the cost of manufacture of structures of this kind.

With this construction, the surface on which the weather strip I4 runsis kept smooth and the rack [6, being made of harder material, reducesthe wear between it and the lock bolt'so that a much smoother operatingwindow construction is obtained.

What I claim is: A

1. In a window construction including a sash having a member carrying alock bolt, a guide member with means for fastening it to a window framemember, said guide member having a relatively thick base portion with aseat and spaced sides extending inwardly toward the window sash from thebase portion and seat, one of said sides being removably carried by theguide member, a sash member for receiving a glass pane and carrying aweather strip to move with it between said sides and against said seat,the guide member having a longitudinal channel directly in the baseportion, the channel being positioned toward the window frame memberfrom the seat, and a rack member having lock notches therein and ofharder material than the seat portion of the guide member and securelypositioned in the channel and substantially filling the channel ex- 5cept at the plane of the seat to receive the end of the sash lock bolt.

2. In a window construction including a sash having a member carrying alock bolt, an extruded guide member with means for fastening it 10 to awindow frame member, said guide member having a seat and spaced sidesextending inwardly toward the window sash from the seat, one of saidsides being removably carried by the guide member, asash member forreceiving a 15 glass pane and carrying a weather strip to move with itbetween said sides and against said seat, the guide member having alongitudinal channel, dove-tail in cross-section, positioned toward thewindow frame member from the seat, and a rack member having lock notchestherein 7 and of harder material than at least the seat portion of theguide member fitting the dove-tail-shaped channel to receive the end' ofthe sash lock bolt, the inner edge of the rack member being located 25below the plane of the seat 1 JOSEPH SCHUNK;

